This CDV is in the collection of the New York State Military Museum in Saratoga Springs, NY. Their webpage on the 10th Artillery Regiment contains CDVs of 3 soldiers in the batallion, including your ancestor Dietrich Bingle.

Thank you, but the CDV I'm looking for is different. It's nearly identical except the frock is unbuttoned (except for the top button) and he is bare headed. The CDV in the NY collection was already there at the time of this auction. Again, thank you, but this isn't the image in question.

Yes, that's the one. Perhaps I'm mixed up, but it seemed to me the seller wasnt The Excelsior Brigade itself. Either way, I've written to them (last week) but received no reply. Thank you so much for your efforts. I'd be so happy to bring Grandpa Dietrich home again.